Yang Xue-qiang, Ling Ping-ping, Yang Rui, et al. Two and Three-dimensional Stability Analyses of Slopes with Local Load on Top Surface(Ⅰ)——Using Strength Reduction Finite Element Method[J]. 2008, 25(4): 86-93.
Yang Xue-qiang, Ling Ping-ping, Yang Rui, et al. Two and Three-dimensional Stability Analyses of Slopes with Local Load on Top Surface(Ⅰ)——Using Strength Reduction Finite Element Method[J]. 2008, 25(4): 86-93.DOI:
Different equivalent area Drucker-Prager yield criteria on π-plane
such as DP4
DP5 and DP6 yield criteria
can give an approximate estimation of soil failure strength under plane strain condition
which is why the equivalent area DP yield criteria are widely used for two-dimensional slope stability analyses.Combining true triaxial strength failure tests of sand
it demonstrates from quantitative point that the DP4 yield criterion is conservative for safety factor prediction of slope stability